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Indigo Ray
Adam

Posts: 1442
Filters: 82
Has anyone ever set the white and black points equal in the levels component and then tried to blur the result? It doesn't blur, but instead exactly matches the maximum component (of a different radius). Why is that? smile:?:

Levels + Blur a Max..ffxml
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Sphinx.
Filter Optimizer

Posts: 1750
Filters: 39
Strange!
I tried using a tone curve + step (smooth = 0) instead of the levels - it looks exactly the same, but the blur reacts as expected here. It must be a bug..

I think it relates to floating point precision errors
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Sphinx.
Filter Optimizer

Posts: 1750
Filters: 39
The "bug" is that the output of Levels is unclamped. What you are looking at is a very high contrast HDR like image.

I had to use two HDR blends to multiply down the output to a reasonable range.
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Indigo Ray
Adam

Posts: 1442
Filters: 82
Hmmm... so HDR and maximum already existed in V1 without us knowing it?
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KGtheway2B
KGtheway2B

Posts: 660
Filters: 34
How the heck did you come across that?
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